UPPERSTRUCTURE / Control Valve Load Check Valve Boom Anti-Drift Valve 10 Figure of Control Valve (Right) Boom Anti-Drift Valve (Refer to Close-Up.) Section of Bypass Shut-Out Valve 38 Section of Arm Flow Rate Control Valve Section of Boom Flow Rate Control Valve 12 16 11 9, 8 7 6, 5 3 13 14 1 2 15 19 4 8 18 21 17 Close-Up of Boom Flow Rate Control Valve, Arm Flow Rate Control Valve 8 22 27 26 23 25, 24 38 20 Close-Up of Boom Anti-Drift Valve Section of Load Check Valve W1J1-02-05-044 W2-5-14